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田湾核电站生物中137Cs和90Sr水平及公众内照射剂量评估

Nuclear Electronics & Detection Technology(2018)

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Abstract
对田湾核电站1、2号机组周围15种生物中137 Cs、90 Sr放射性水平进行监测,并对所致的内照射剂量进行估算.结果表明:生物中137 Cs、90 Sr活度浓度范围分别为0.008~0.208 Bq/kg和0.007~1.010 Bq/kg.依据测定的数据,估算出核电站周围由膳食摄入137 Cs、90 Sr所致公众年待积有效剂量为:0.67μSv,其中贡献相对较大的是粮食和蔬菜.
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